Cutting apparatus for glass feeders



Y oci. 12,1926',

vA.' N. CRAMER v purrte APPARATUS FOR GLASS FEEDERS l origini Filed Augusi 6.,- 1920 2 sheets-'sheet 1 'QE Mza/.Ww

' A. NCRAMER l. V

oUTTNs APPARATUS FOR GLASS FEEDERS originall Filed Augslt 5. 1920 g Sheng-sheet ,2

' compensate tor4 the reduced maar N. c, or Too,

orv Tonano, omo, a

CUTTING AEP original appnaon aan august e, wao, serai no. 401,633. mvidea and OHIO, ASSIGNOE T0 THE OWENS BOTTLE COMPANY,

CORPORATION 0F OHIO'.

; Tus Foa GLASS Famosas.

this application flied- September 13, 1924. Serial No. 737,481.

My invention relates'to apparatus for delivering mold;charges or masses from a supply of mediaanl glass, and more particularly to the cutting apparatus by which the charges are severed from the source of suply. p In the preferred form of'construction, the molten glass is caused to flow or issue from an outlet in the bottom of a container. Cutting means comprising a pair of shears, and a retarding cup, are mounted on a reciprocable support, by which the .cup and Ashears are brought alternately into `operating posltion .beneath the outlet.'A lA single motive element, as an air cylinder, is' used to reciprocate the support and actuate the cup and cutter, thereby providing asimpliiied mechanical construct'gm. The cutter comprises a pair of blades and a. toggle link connection so arranged that an opening and closing movement of the blades is effected by a single direct movementV of the actuating devlce, giving'a quick cuttingniovement.v

Moreover, the toggle arrangement insures a maximumeffective pressure or power applied to the blades at the-time of cutting.

A further feature of the invention relates to the mountingof the pivoted knife arms tension is applied t`o the vpivot of the upper blade. and a resilient upward tension to its mate. vThe arrangement is such that the blades are both uniformly tensioned. Furthermore, .one of the blades is adjustable iiito and out of relation to-its mate. -This construction permits regulation of the overlap of the bl sure proper cutting. The adjustment may readily -be made after the parts are assem.

bled. and

the operation ,of the cutter. This adjustment 'avoids the need Aor the usual shims or other expedients commonly 'employed to thickness of the cutters when ground to maintain their cut 4ting edges.

Other-:features and advantages will appear hereinafter.'-

adesas may be required. to'in' it desired, without interrupting'v 'The present application is a division of my co-pending application glass into mold charges.

In the accompanying drawings:

Figure 1 is a sectional-elevation through the furnace boot or spout from which the glass issues, and shows a severed charge of' glass being dropped into a mold.

'igure 2 is a part sectional elevation of the cutter mechanism. 'y

vFigure 3 is a plan view of the vcutting 60 mechanism, the retarding cup, and the actu ating means for said parts.

Figure 4 is a similar view with the parts in a'diiercnt position.

-The molten glass 20 is supplied from a 65 container 21 which in the present instance is a. furnace boot or extension formed with a spout or passageway 2 3 through which' the glass is discharged. Tige glass issues through an outlet opening formed in a clay bushing 35 beneath and in alignment with the spout 23. A ring burner 38 surrounding the bushingrr serves to maintain a suitable high temperature of the issuing. glass and surrounding parts.

The flowing glass is periodically severed at a. point beneath the burner to form individual masses or gobs 'whichare permittedI to drop'into the molds 140 of a .glass forming machine. After each cutting operation, a controlling devicein the. form of a cu (Fig. 4) is brought -beneath the outlet and cooperates with tlie burner to control, support, shape andreheat the glass. The apparatus for actuating the cutter and cu mounted on a supporting frame 50 located 'beneath the furnace boot 21.

The cutting mechanism comprises a pair 'of shear blades 62 on arms 63 pivotally supported by pivotj'pins 64 and eiprocating plate l65. connected by pivots 67 to the cutter levers 63. A cutter operating arm 68 is connectedv by a pivot pin 70 to the toggle links. The arm 68 is fulcrumed to swing about a'pivot 95 pin 72 mounted in the -frame 5Q.

Toggle links 66 are Serial Number 50. 401.638, filed August 6, 1920, forming hot 641 on a're- 90 l@ the'spring being adjustable l spring 178 bears 2.0 arm 68 are adjustable up 5 ery ot' the sleeve 17 9.

50 motor 82 now operates,

55 in line with the flow opening.

Tensioning. means (Fig. 2) are provided in connection with theknife arms 6 whereby the uppei` blade is causedto bea downwardly against the lower blade, and the low E er blade upwardly. Such means comprises a spring 175 mounted on the pivot pin 641 of the upper blade, said. spring being held under tension between the plate 65 and a washer 176 on the pivot pin, the tension of by means bf a nut 177. A spring 178 mounted on the pivot pin 64 applies an upward tension to the lat- 'ter and to the kni'te arm 63 which is keyed tosaid pivot pin. The lower end. of' the downwardly against a sleeve 179 mounted in a block 18() forming an integral part ot the plate 65. The sleeve '179,has a threaded connection 181 with the block. whereby the pivot pin and attached and down, so that the knife blades are relatively, adjustable vertically. The sleeve 179 is held in its adjustedposition'by a spring actuated detent 182which engages notches 183 in the/periph- Tliismetliod of adl jiistment permits the .blades to be accurately y adjusted after the parts' are assembled, and

renders unnecessary' the use. of the usual shims which are ordinarilyemployed to adi 39 just the knives closer" together after they have been ground thinner to maintain their cutting edges.

The cup C' rable sections nected by pivots d links 76 pivoted to said levers at 7 7. are ac'- tuated by an. arm 78 iulcrumed to swing about the pivot pin 72. A coil spring 79 supported iii a y/oke'SO, bears at its ends comprises horizontally sepa- 73 carried on levers 74 con- 40 against" the levers 7 4.

The cup andflcutting mechanism are oper* ated by an aifrmotor 82 mounted on the under side (ijf/the trarnev 50, said. motor comprising af piston rod 83 connected through a linkfl to a lug` or extension 85 of the knife' operating arm 68.

The operation of the cutter and cup-.is as f/rollows: Figure 3 shows the position of parts just before the cutting operation. The the piston'rod 83 being moved to the right. This swings the cutter arm 68 about its 'fulcrum 72. The toggle links 66 Iare thereby actuated, first moving the blades l62 together to shear the glass, and the pivot pin 70 moves beyond the pivots 67, the cutter blades are separated. By this time `the arm 68 has been .brought up against a stop `86 on the late `65 so that the continued movement o the arm 68 causes s'aid plate kto swing withit about the pivot 72. The cutter mechanism is Athus moved bodily to the left beyond the {iow opening Vand the cup sections carried inwardv to positions on opposite sides of and efore the 7 5 to the plate 65. Toggle plate completes its movement, the cup actuatingarm 78 is arrested by a rod 87 connected at 88 to the'arm 78 and having a 'sliding connection at its opposite end with' the frame 50. The arm 78 being thus arrested, theiinal movement of the'plfate 65 causes the toggle links 76 to be straightcned and close the cup sections, as shown in Figure 4. The cup C is now in position directly beneath the flow. The parts retain this position until the motor 82 is reversed and returns the parts to the Figure 3 position. During this return movement, tlfe arm 68 swings from the stopf'86 to thev stop 89, thereby moving the toggle links 66 inA ward. rThis gives an idle shearingin-ove ment to the cutters, which is merely incidental to positioning the next cut.

consisting of a spring pressed lug90-bearing against ablock 91 and which may seat in recesses in Vsaid block. After the arm 68 strikesv the stop 89 the plate 65 is swung to the right. As it commences'such movement, the pivots 77 are moved therewith relatively to the arm 7 8 and cause the cup sections to be separated. The spri ing the cup with a snap action. The parts are thus brought to the Figure 3 position in which they remain until the motor 82 again operatestorepeat the cycle of movements above described.

The gobs of glass `.when severed from the oncoming stream, 'as shownmin Figure l, drop directly into the blanzk `molds 140 of the glass forming machine. ,Forming elements or shields 141' are mounted on the cutter arms 63 in position to surround the gob of glass as the latter is 'severed Tand serve to guide the glass vin its downward mover ment. and may have more or less of a comn pressing and shaping action on vthe glass. The gobs drop through stationary guiding rings or jtunnels 1.43 directly beneath .the flow opening.

Modifications may be resortedl to Vwithin the spirit and scope of my invention.

What I claim is:

1. The combination with -means for flowinglT glass, of cuttingr mechanism for periodically severing the glass comprising shear blades, levers carrying said blades, a toggle. connecting said levers, a pivot/ed support on which said levers are mounted, means to oscillate said support about its pivot and thereby swing said levers and toggle bodily into and out of a position in operative relation to the fiowing glass, a lever arm-fulcrumed on said pivot and connected' 'to said toggle, and means to swing said arm and thereby actuate the toggle i sition and thereby actuate 2. The 'combination with a container for molten glass, provided with an outlet orifice'A the toggle links for' Movement of the plate 65 at '/this time is prevented by a friction brake ng 79 assists in openi when in said pothe shear blades.

mths bam thereof', 0f @using mechanism vbeneath ythe container comprising a pair of levers, cutter blades thereon, a carrier on 'whiclrsaid levers are mounted, means to 4single movement to reciprocate said levers oscillate' said carrier about a stationary fullcrum 'and ythereby swing'tlie blades toward and thereby shear the glass.

3; Mechanism foi-. l periodicaily severing ,molten glass, com rising cutter-' blades, le-

vers on which theb ades are mounted, a pair of toggle linksA connecting said levels and holding 'the cutter blades closed when the Alinks are in such position that the pivot connecting 'the links is in linewith the pivots which connect the links to the levers, and

an arm` operable by a single movement to move the. toggle links to. and beyond said position and thereby reciprocate said levers and cause them tol close and open the cutter I ,4 molten glass, comprising cutter blades, le-

` links operable by a single movement to actu- .ate -the toggle links and cause the cutter vers on which the blades are mounted, a pair 'of toggle connectingsaid levers, and

an actuating arm connected to the toggle.

' -blades to sever the glass and by'a continuai ,tion of saidmovementto move said levers ag,

l' r 5i The combination with means for flowbodilv 'away `jom the cutting position.

4ingmolteii glass,\of mechanism for periodically' severing thxglass, comprising shearr blades, levers on which said blades are mounted, toggle links connecting said levers,

lajpiston motor, and mechanism between the motor and said levers whereby the latter are operated "to shear the glass and then withdrawn bodily by a single movementuof the motor piston.

6. The combination with means foizt'ilowilng molten glass, of shearing mechanismto 4 sever the lass, comprising apair ofjlevers,

shear bla es carried by said levers, lamovable carrier on which saidl levers are mounted, toggle links connecting said levers, a swinging arm* operable to move said carrier and having a -lost motion connectiontherey with, and a piston motor connected to said arm for actuating it, said arm operable by a single movement to actuate said toggle links and thereby close and open the shear blades for severingthe Aglass and then to move said carrier and Withdraw said levers bodily away from the cutting position.A

. f1. Means for severing charges fromdownwardly discharging molten glass, comprising, in combination", cutter arms, blades carried thereby means to actuate said arms and cause the blades to move transversely and 'sion is'applicd to the other pivot pin.

shear the glass, means to cause the upper blade to beardownward with a spring pressure against the-lower blade, and separate means for causing aan upward spring pressure of the lower blade aga-inst the upper 70 blade. I

8. Means for severing charges from downf Wardly discharging molten glass, comprising, in combination,` cutter arms, blades car 'ried thereby, means to actuate said arms and 75 cause the blades @to move transversely and shear the glass, means to cause the upper blade to bear downward with a spring pres- Ward tension is applied to one of said ivot pins,'and a spring by which an upwar ten- 10. Mechanism for shearing molten glass, comprising, in combination, a support, le-v vers, cutter blades carried there y, "pivot, pins mounted in said levers and journalled inl said supporaa spring by which s do'wnward tension is applied to one of said pivot pins, a spring by which an upward tension is applied to the other pivot pin, and means for adjusting one of said pins with its connected lever up and down in said support.

11. Cutting mechanism/ comprising, in combination, shear blades, levers on which said blades are mounted, toggle links con- 105 necting said levers, a piston motor, and

diwn'bodily from the cutting position by a 1'10 single movement of the motor piston.

v12. Cutting mechanism comprising, in combination shear blades, levers on which said blades are mounted, toggle links connecting said levers, a piston motor, and

-mechanisn'i between the motor and said levers whereby the shear blades are brought together and then separated during the movement of the piston in either direction.

l13. Iii combination, cutter arms, blades carried thereby, means to actuate said arms and cause the blades to come together in `shearing relation, means to cause one blade to bear with a spring pressure a ainst the other blade, and separate means or apply- 25 ing aspring'pgggsure .to the second blade 1n the opposite'direction to balance said first mentioned pressure.

14. The combination of cutter arms, blades carried thereby, means to actuate said arms 1.30

and cause the blades to come to ether in shear-- I ing relation with one blade a ove the other, the upperblade to bear dmvnwarfl with -a springr pressure' against the lower blade, and separate means vfor causing an upward spring pressure o lower blade against the. upper blade'.

15. The combination of cutter arms, blades carried hereby, means tofactuate Said arms and cause the blades to come together in shearing relation with one blade above the other, means for ausingihe upper blade to bear downward with a 4apring pressure against f the lower blade, separae means 01 causing an Nupward! sprlng pressure of 4the lower Nif blade against thefupper blade, and operable while the parte are assembled adjusi'ine' one Blade up and down relative tojthe other.

Si ed at and btate of Ohio, bei', 199A.

Toledo, inithe county of Lucas 20 this 10th day of Septem- ,ALBERT u. Gamma 

